Texas Instruments CC2541EM Quick Start Manual

CC2541 Evaluation Module Kit Quick Start Guide
Opening the Box and Running the Bluetooth® Low Energy SimpleBLE Demo Application
1. Kit Contents

2 x CC2541 Evaluation Modules

2 x Pulse W1010 Antennas

Documentation
The kit is FCC and IC certified
tested/complies with ETSI/R&TTE
temperature from 0 to +35°C. The antenna,
W1010 from Pulse, is a ¼ wave dipole antenna
with 2 dBi gain.
Caution! The kit contains ESD
sensitive components. Handle with
care to prevent permanent damage.
4. Power Options
There are several ways of applying power to the
SmartRF05EB.

2 x 1.5 V AA Alkaline Batteries

USB

External Power Supply
For the batteries and USB, there are voltage
regulators on the SmartRF05EB that will set the
on-board voltage to 3.3 V. The external power
supply should set a voltage that does not exceed
3.3 V. Note that there should only be one
active power source at any one time.
Warning! To minimize risk of personal injury or
property damage, never use
batteries to power the board.
7. Using the Joystick
The SimpleBLEPeripheral application
autonomously and does not require any user
interaction. The SimpleBLECentral application,
however, requires user interaction by means of
joystick U1. Find joystick U1 on the top side of
the SmartRF05EB, immediately below the LCD.
The joystick has five different movements: it can
be moved up, down, left, right, and it can be
pressed in, just like a button. Each movement
performs different actions depending on the state
of the device.
2. Hardware Requirements
The CC2541EMK is an add-on kit to the
CC2540DK. To run the example described in
this Quick Start Guide, you would need two
SmartRF05 Boards (Rev 1.8.1 or later). These
boards are included in the CC2540DK (and
not in the CC2541EMK).
and
over
More information about the SmartRF05EB can
be found in www.ti.com/lit/swru210.
The CC2541EM boards can also be plugged
into a battery board (see
bb) for standalone operation.
5. Power the
Boards
Find jumper P11 on
the top side of each
SmartRF05EB. This jumper is used to set the
power source for the board. Set P11 to "1-2" if
you are using battery power. Set P11 to "2-3" if
SmartRF05EB. To power up the boards, flip the
switch from the "OFF" position to "ON".
rechargeable
Do not leave
unattended.
8. Device Discovery
runs Before the two devices
can connect, the central
device must
discover the peripheral
device. To perform
device discovery, press
up on joystick U1 once.
The LCD on the central
device should display
"Discovering...".
After a few seconds, it should display "Devices
Found 1 / <- To Select". This means that the
central device successfully
peripheral. Press left on joystick U1 to view the
address of the peripheral device. This address
should match the
peripheral's LCD.
Web sites: www.ti.com/lprf
E2E Forum: www.ti.com/lprf-forum
Demo Application
3. Hardware Hardware Setup
Connect the antenna to the SMA connector on Connect the antenna to the SMA connector on
the CC2541 evaluation module (CC2541EM). the CC2541 evaluation module (CC2541EM).
Tighten the antenna's screw firmly on to the SMA Tighten the antenna's screw firmly on to the SMA
connector. If not properly connected, you might connector. If not properly connected, you might
see reduced RF performance. see reduced RF performance.
Next, mount the CC2541EMs firmly on to Next, mount the CC2541EMs firmly on to
connectors P5 and P6 on the SmartRF05EB. connectors P5 and P6 on the SmartRF05EB.
www.ti.com/tool/soc-
Caution! To minimize risk of injury, avoid
touching touching
symbolized as hot. symbolized as hot.
6. Start-up Screen
One of the CC2541 One of the CC2541EMs will be pre-loaded
with the SimpleBLECentral application, while with the SimpleBLECentral application, while
the other will be pre-loaded with the the other will be p
SimpleBLEPeripheral application. The LCD SimpleBLEPeripheral application. The LCD
screens on the two SmartRF05EBs should screens on the two SmartRF05EBs should
display messages similar to those below: display message
you are using USB or an
external power supply.
Once you have set P11,
find switch P8 on the top
side of each
The "0x..." value displayed on each board is The "0x..." value displayed on each board is
the device address. Every the device address. Every CC2541 device
has a unique address.
EVM powered when
9. Establish Connection Establish Connection
To To
connection connection
first the the
press joystick U1 press joystick U1
in in
board (push it in board (push it in
like it is a button). like it is a button).
Once
connection connection
established, established,
automatically perform service discovery on the automatically perform service discovery on the
peripheral using the BLE GATT protocol. This peripheral using the
should complete within a few seconds. should complete within a few
discovered the
The two LCD screens should appear as in the The two LCD screens should appear as in the
images below, with the ce images below, with the central still displaying
address seen on the the peripheral's address and the peripheral the peripheral's address
having having
"Connected":
Be careful that you don't double tap U1 which Be careful that you don't double tap U1 which
would terminate the connection immediately, would terminate the connection immediately,
giving Disconnected Reason: 22
Make sure to subscribe to the Low Make sure to subscribe to the Low-Power RF
Newsletter to receive information about updates to Newsletter to receive information about updates to
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Sign up on the TI web pages. Sign up on the TI web pages.
December 2011
To minimize risk of injury, avoid
components components during during operation operation
up Screen
a unique address.
establish establish a a
with with
peripheral, peripheral,
towards towards the the
the the
is is
the the central central device device
changed changed from from "Advertising" "Advertising"
Disconnected Reason: 22.
SWRU311
if if
will will
to to